Franz ruhr



(No Model.)

F. RUHR.

INSIDE BLIND. No. 255,538. Patented Mar. 28,1882.

UNITED STATES PATENT OFFICE,

FRANZ BUHB, OF TEPLITZ, AUSTRIA.

INSIDE BLIND.

SPECIFICATION forming part of Letters Patent No. 255,538, dated March23, 1882.

Application filed September 3,1881; (No model.) Patented in BelgiumAugust SI, 1881, in Italy August 31, 1881, and in Germany October 13,188i.

T 0 all whom it may concern:

Be it known that I, FRANZ BiiHR, a subject of the Emperor of Austria,residing at Teplitz, in the Empire of Austria, have invented a new anduseful Venetian Blind, of which the following is a specification.

My invention relates to improvements in the devices for adjusting theslats of Venetian blinds; and the object of my improvementsis to combinein a simple manner my new blindslat adjuster with the device for raisingand lowering the blind-slats. I attain this object by the mechanismillustrated in the accompanying drawings, in which- Figure 1 is a frontView of the entire Venetian blind; Fig. 2,averticals ction of theVenetian blind on the line Y Z TU, Fig. 1; and Fig. 3,a vertical sectionof the Venetian blind at lineV X, Fig. 1, when closed.

Similar letters refer to similar parts throughout the several views.

The arbor G is provided with two pivots, H H, turningin the bearings 'lT, secured to the frame A. The narrow bandsD D, which pass through theslats B B and are attached to the last slat, B, are wound around thearbor G. By pulling the cord E, wound around the arbor G, in thedirection opposite to that of the narrow bands D D, the slats B B areraised in the usual manner. The arbor G is surrounded by the hollowcover K, oscillating round the pivots H H of G. To the longitudinaledges of this cover K are fastened the broad bands 0 (J, provided withshort strings M M, connecting the bands 0 (J and supporting the slats BB. One edge of the cover K is ata greater distance from the fulcrum ofthe cover Kthan the other, and by this means the disturbed equilibriumof the cover Kiuduees an inclined locking position of the slats B B.

By pulling more or less the cord F, Figs. 1 and 3, attached to the coverK, the slats B B may be adjusted into the horizontal or any inclinedposition, and held securely in it byfastening the cord 1 to the buttonN. The button N is designed for fastening to it the cord E. The cord E,kept back by the clasp L, cannot enter to the pivot H and trouble therotation of the arbor G.

I am aware that prior to myinvention blTndslat adjusters have been madewith an oscillating top bar, to whichthe slats are secured. therefore donot claim such a construction, broadly; but

What [do claim as my invention, and desire to secure by Letters Patent,is-- 1. [n a Venetian blind, the oscillating cover K, the edges of whichare of unequal distance from the fulcrum, in combination with the broadbands 0 (3, attached to theedgesot' said cover K, and connected bystrings M M, supporting the slats B, and the slats B B, in the mannerand for the purpose described.

2. The combination, in a Venetian blind, of the arbor G, with bands D D,passing through the slats and attached to the last slat, B, theoscillating cover K, with broad bands '0 O and strings M M, supportingthe slats B, and the cords F and E, the whole being arranged to operatein the manner and for the purpose set forth.

FRANZ Runs.

Witnesses:

FRANCIS POSSAWKA, ARTHUR GERSON.

